Loading-machine



W. WHALEY.4

LOADING MACHINE. APPLlcAlUoN FILED Nov.26,191 1.

Patented May 24, 1921. v I3 SHEETS-SHEET l* ArvllAnlii 4 @l www SMQ/who@ W. WHALEY.

LOADING MACHINE.

APPLICATION FILED Nov. 2e, 1917,

Patented May 24,1921.

una n to@ 13 SHEETS-SHEET 2.

lW. .WHALEY.

LOADING MACHINE.

APPLlcATloN FILED Nov. 26, 1917.

Patented May 24, 1921.

13 SHEETS-SHEET 3f Snom/stof,

' oznn" W. WHALEY.

LOADING MACHINE.-

' APPLlcAnoN F|LED Nov,26,191.

Patented May 24, 1921.

I3 SHEETS-SHEET 4.

W. WHALEY.

LOADING MACHINE.

APLlcATloN FILE'D Nov. 26. um.

Patented May 24,1921.

13 SHI-II'ITAS-SHEET` 6.

314mm n tez thrown c,

W. WHALEY.

LOADING MACHINE.

APPLlcAloN HLED Novl 26. 1917.

Patented May 24,1921.

13 SHEETS-SHEET W.l WHALEY.

I LOADING "MACHINL APPLICATION FILED NOVk26, 1.917.

1,379,427. ,Patented May24,11921.

W. WHALEY,

LAmNG MACHINE.

APPLICATION FILED NOV: 26. |917.

Patented May 24,1921.

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lll/lll 'En f 57;? I um 4fw; WHALIEY.Y

LOADING MAcHmE l APPLICATION `-FILED NOV. 26| |917.

APatented May 24, 1921;

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www M1 f um. I l Z/QZ/ w. WHALEY. LOADING MACHINE.A

AIPPLICATION FILED NOVI 26, 1917.- n .I

Ptented May 24, 1921,'

PATsN'r ort-fica.

WILLIAM WHALEY, OF KNOXVILLE, TENNESSEE.

LOADING-MAGHINE Specicaton of Letters Patent.

Patented May 24, 1921.

Application filed November 26, 1917. Serial No. 204,032.

To @ZZ whom t may concern Be it known that lj WILLIAM WHALEY, a citizen of the United States, residing at Knoxville, in the county of Knox and State of Tennessee, have invented a new and useful lmprovement in Loading-Machines, of which the following is a specification, reference being had to the accompanying drawing.

My improvement relates to loading ma-4 chinos which are adapted to move to masses of material to be -loaded and take quantities of such material and carry said material rearward across the machine and discharge the material from the rear part of the machine.

The machine comprises supporting wheels on which it is adapted to be driven forward and backward and t0 be steered obliquely sidewise while being driven forward or backward. The machine further comprises a conveying mechanism extending from the front of the machine rearward beyond the main frame and upward to a suflicient height to make space below the rear end of said conveying mechanism to place a vehicle or receptacle into which the material carried by the conveyer is to be discharged. In the preferred form. the machine further com` prises a magazine or receptacle applied at the rear of the conveying mechanism to receive the material discharged from the conveying mechanism7 the said receptacle being at such height as to permit bringing a ve hicle or other portable receptacle or carrying meansI below the first-mentioned receptacle, in order that the magazine receptacle may uninterrnptedly receive material from the elevating mechanism and vehicles may periodically be placed below the magazine receptacle and the material discharged from the magazine receptacle into the carrying vehicle. The machine furtherV comprises mechanism located.. at the front of the elcvator mechanism and adapted to take material. located. at the front of the machine.

One of the objects of the invention is to provide in convenient and efficient form a loading machine comprising conveying mechanism extending rearward and upward over the machine and magazine means for receiving the material discharged from the rear end of the conveying mechanism., in

order that the material carried by the conveying mechanism may be accumulated and periodically discharged into carrying receptacles.

Another object of the invention is to associate with the main frame and conveying mechanism of a loading machine carrying and steering wheels and propelling mechanism of efficient and convenient form,v in order that the position of the machine may readilv be changed as may be desirable or necessary while performing the work of loading.

In the accompanying drawings,

Figure 1 is a right hand side elevation of the forward half of a machine embodying my invention;

Fig. 2 is a right hand elevation of the rear half of the machine -of which the forward half is shown in Fig. l;

Fig. 3 is a .plan of the shovel mechanism shownin elevation in Fig. 1;

Fig. 4 is a plan of the main frame or body of the machine with a supplemental frame and the rear carrying wheel applied thereto;

Fig. 5 is a right hand elevation of the structure shown in Figs. l and 2 with the chair casting in position on the main frame;

Fig. 6 is a plan of the chair casting;

Fig. 7 is a plan of the machine, the con veyer, the operators seat, and the forward portion of the machine being omitted;

Fig. 8 is an upright section on lthe line, 8 8. of Fig. 2, looking toward the right;

Fig. 9 is an upright section on the line 9-9, of Figs. 1 and 7. looking toward the right, the conveyer being omitted;

F ig. 10 is an upright section on the line, 10-10, of Fig. 1 and Fig. 7, looking toward the left;

Fig. 11 is an upright section on the line, 11-11, of Fig. 1 and Fig. 7

Fig. 12 is an upright section on the line, 12-12, of 7, looking toward the right;

Fig. 13 is an upright section on the line, 13-13, of Fig. 12;

Fig. 14: is a horizontal section on the line, 14-14, of Fig. 12 and Fig. 13;

Fig. 15 is an upright sectional view on the line, 15-15, of Fig. l and Fig. 7., looking toward the left;

Fig. 16 is a detail plan illustrating the Vneck is supported `by a nut,

steering mechanism applied to the rear carrying wheel;

Fig. 17 is an upright section on the line, 17-17, at the middle of Fig. 7, looking 1n the direction of the arrow;

Fig. 18 is an upright section on the line, 18-18 of Fig. 11 looking toward the right; Fig. 19 is an uprig .t section on the line,

V19-19, of Fig. 7, looking in the direction of the arrow;

Fig. 2O is a horizontal section on the line, 20-20, of Fig. 19;

Fig. 21 is an elevation of the mechanism shown by Fig. 19, looking toward the left;

Fig. 22 is a right hand side elevation of the lower end of the conveyer;

Fig. 23 is a detail view of the plates by which the lower or forward end ofthe conveyer is secured to the main frame;

Fig. 24 is a section on the line, 24-24, of Fig. 221 looking toward the left;

Fig. 25 is a detail plan of the upper end of the conveyer, portions being broken away;

Fig. 26 is an upright section on the line, 26-26, of Fig. 2, looking toward the right;

Fig. 27 is a horizontal section on the line, 27-27, of Fig. 2; y

Fig. 28 is an upright section on the line 253-28, of Fig. 27 looking in the direction of the arrow. o 1

Referring to said drawings, A is a frame or base upon which the working members of the machine are supported. Said frame comprises cross members, A2, A3, A2, and A2. At the rear end of said frame is a bridgepiece, A2, extending from one side of the frame to the other. In line with the cross member, A2, the frame has two bearings, A7, which are on a line which is horizontal and transverse to the main frame at about the height ofthe lower face ofthe frame.

ASaid bearings receive the main axle, A8,

which projects laterally beyond each side edge of the frame far enough to receive a main carrying wheel, A.

Near the middle of the main frame are bearings, A60 which are on a common axial line which is horizontal and transverse to low the bridge-piece, AG', and is supported on an axle, A11, extending transversely` across the lower end Vof the fork, A12which has a neck, A13, extending upward through the bearing A12. Above said bearing said A15. whereby casting, A1

said neck is secured in said bearing. On the left handV side of said fork is a laterally extended arm,y A1, to which is coupled the rear member, A17, of a telescoping link, (Fig. 16). The forward member', A18, of said link is tubular and interiorly screwthreaded around the exteriorly screwthreaded member, A17. The forward Vend of the member A18, is coupled to the rear end of a rotary shaft, A20, said end of said shaft extending into said tubular member and a cross pin, A12, extending through said tubular member and said shaft and forming a hinged joint. The shaft, A20, rests in a bearing, A21, in the cross member, A2, and extends forward through said bearing and supports a worm wheel, A22, which is engaged by a worm, A23, which is on an upright shaft, A24. The rotation of the shaft, A22, will cause the rotation of the shaft, A20, and the tubular member, A12. The rotation of said member causes the latter to draw or drive the member, A17, endwise, according to the direction of rotation of the member, A18. Thus the link member is shortened or lengthened; and by this movement the arm, A1, is moved forward or backward and the fork, A12, is correspondingly turned on its upright axisthe axis of the neck, A12. The turning of said fork changes the plane of the wheel,

A10, out of the longitudinal upright plane yof the machine; and when said wheel is thus changed during forward or rearward movement of the machine, the rear end of the ma- Vmeans which will next be described.

At each side of the frame, A, the chair .g has a horizontal bearing, A36.

Said bearings are on an axial line which is horizontal and transverse to the length of the machine and the axial lineV of the shaft, A21. In said bearings rests a rotary shaft, A25. On the upper end Vofthe shaft, A22, is a bevel clutch wheel, A22, which is adapted to engage either of two clutch wheels, A27 and A28, which are mounted on a sleeve, A22, which is feathered on the shaft, A35, to be rotated with the shaft and slidable ,endwise on. the shaft. Said sleeve projectsV leftward of the clutch wheel, A27, and said projecting portion is provided with a circumferential groove, A30, in which is engaged the` short arm, A21, of a clutch lever, which is pivoted at A22 to aV stationary bracket, A33, formed on the chair casting, A1. The long arm, A34, of said clutch lever .extends to the right hand side of the machine and the right hand end of said arm is Vturned rearward and forked to extend to Atwo sides of the hand lever, O12. Said arm and said hand lever are coupled to each other by a bolt, 013, extending horizontally through said arm and said lever. The lower end of said hand lever has a hub, 014, which loosely surrounds a shaft, @15, and which is horizontal and transverse to 'the length of the machine and rests in bearings, 01 and 011, termed in the chair, A1, already described. Between. the hub, O14, and the bearing, @11, the shaft, U13, is surrounded by the hub 012, of a short upright lever, 02. Said lever is keyed rigidly to said shaft. By throwing' said lever to its forward or backward limit, one or the other of clutch members, A26, makes engagement with its companion clutch member; and placing the hand lever into its middle posi* tion. leaves both the clutch members A42, out of engagement with the companion clutch members (Figs. 9 and l0).

The lett hand end of the shaft, A35, projects far enough through the bearing, A3", to receive a spur gear wheel, .A32, and a larger spur gear wheel, A33, the latter mesh ingwith a small spur gear wheel, A20, on the shaft oi a motor, M, which is seated on. the frame, A, at the rear of and parallel to the shaft A35. lThe shaft A33, receives motion from the motor through the spur gear wheels, A4 and A33'.

By means of the hand lever O12, the clutch lever, A31- A, may be oscillated to shift the clutch wheels, A21 and A23, to put one or the other of said wheels into engagement with the wheel, A23, on the shaft A22, or the hand lever may be put into its middle position to place both of the wheels, A21 or A22, out el engagement with the wheel, A23. When that is done, the shaft, A24 and the worm, A23, will be at rest and the tubular link section, A13, will not be rotated. Hence the fork, A12, will be held stationary and position of the wheel, A10, relative to the upright longitudinal plane el" the ma chine will not change. l/Vhen the clutch wheel A22, engages the wheel, A26, the wheel, A13, and the fork, A12, will be turned in one direction and when the clutch wheel, A22, is put into engagement with the .Rfl'leel, A23, the fork will be turned in the opposite direc-tion.

For the sake of safety, provision is made lor automatically eitecting the disenment of this clutch mechanism. Without such provision, the tubular link member might continue rotation until some part of the mechanism becomes deranged. llence the mechanism next described.

Between the bridge-piece, A, and the nut, A15, the neck, A13, of the fork, A12, is sur rounded by an arm, 01, which extends to the right of and is rigid on said neck. To the outer end of said arm is coupled the rear end of a link, O2. The forward end ,of said link is coupled to a` sleeve, 03, which is mounted on a reciprocatery rod, O4. Said sleeve is slitted longitudinally and provided with bolts, 05, extending transversely through flanges on said sleeve. By tightening said bolts, said sleeve is clamped immovably to said shaft.. l/Vhen said bolts have been loosened, the sleeve may be moved to a new position on said shalt. |he rear end of said rod rests slidably in an aperture, GG, in the right hand standard, B3, which is one of the supports lor the conveyer as hereinafter described.

The forward end of the rod, @2, extends horizontally through a bracket, O1, seated on the clutch lever arm, A32. Forward of said clutch lever a collar, O3, surrounds said rod and is immovably secured thereto by a pin, 02. Rearward of said clutch lever, said rod is surrounded by a shiftable colg lar, O10. By means of a set-screw, O11, said collar may be shifted on said rod to any desired point. When the clutch lever arm, A34, is thrown forward by the operator, the clutch member, A21, is placed into engagement with the clutch member, A2, and the tubular member, A13, is rotated and draws the link member, 11, whereby the fork, A12, is rotated so as tomove the arm, O1, rearward, whereby the link, O2, and the rod, O, are drawn rearward. This action proceeds until the collar, 03, bears against the bracket, O1, and draws the latter and the clutch lever arm, A31, rearward until the clutch is disengaged. When the clutch lever arm is moved rearward by the operator, the clutch member, A22, is moved t0- ward the left into engagement with the clutch member, vA2,-whereby the tubular member, i- 12, pushes the link, A12, rearward. rlhis movement causes the arm, O1, and the link, 02, and the rod, O2, te move forward until the collar, @12, bears against the bracket, C, and moves the clutch lever arm, A32 whereby the clutch member, A22, is disengaged from the clutch member, A2, The principal function or' the arm, @1, link, O2, rod, G4, and the parts associated therewith is to limit the duration of the engagement ot the clutch members, in order that the parts concerned with the control of the fork. O12 may not be damaged by excessive rotation ef the tubular link, A13. A secondary function is performed by indicating to the operator the position et the wheel, l, 10. AWheu the collars, O3 and 01, are equidistant from the bracket, U2, the wheel, A10, is parallel to the length of the machine and in position for straight forward or backward travel.

The wheel, A10, is idle., That is to say, no power is applied thereto.` It serves merely as a carryingand steering` wheel. For the propulsion olf the machine, power is applied to the main carryine` wheels, A9,

which, as above described, are gournaled onl the axle, A5. These wheels, A5, are driven from theV shaft, A25, from which, as above described, power is transmitted for steering the rear wheel, A15.

Loosely surrounding the shaft, A55, between collars, A52, is a bevel cog wheel, A51, to the inner face of which is applied one member, A52, of a cone friction clutch. Between the bearing, A57, and another collar, A55, is a similar loose bevel cog wheel, A52, directed toward the bevel cog wheel, A51, and 0n the inner face of the wheel, A14, Vis a cone friction clutch member, A45, directed toward the similar cone friction cntch member, A22, f

Between the hubs of the wheels, A51, and A45, the shaft is surrounded by a pair of conical clutch members, A45, adapted to lit into the clutch members, A42 and A55, and separated by a channel space, A57. Said clutch members are unitary and are feathered on the shaft, A55, to permit endwise movement and compel rotation with the shaft. The short arm of a clutch lever, A55, extends into the channel, A27. Said lever is pivoted at A45. The long arm, A55, of said lever is turned backward and forked to extend to opposite sides of the arm, O25. and said members are coupled to eachother by a horizontal bolt, O21, extending trans versely through said members. The shaft, O15, projects rearward through the bearing, O17, and is there surrounded by the hub, O22, of a hand lever, O25. Said hub is keyed rigidly to said shaft. Thus relative to the handk lever, O25, and the arm, O25, the shaft, O15, serves as arrock shaft whereby motion may be transmitted from the upper end of the hand lever to the arm, G25. The'arm, O25, is interposed in this manner in order to permit setting the hand lever, 023, at a suitable distance from the hand lever, O12.

Below the bevel cog wheels, A51 and A44, is a similar bevel cog wheel, A52, fixed on an upright'shaft, A55, which rests in bearings,

A55 and A55, the bearing, A55, being in the main frame and the bearing, A55, being in the casing, A55. Between said bearings, said shaft has a worm, A55, which meshes with a worm wheel, A57, which is mounted on a transverse shaft, A55, which is parallel to j and forward of and below the shaft, A55, and

rests in bearings, A55, formed on the lower face of the main frame (Figs. 4, 5, and 9). With the bearings, A55, is associated a casing, A52, which surrounds the worm wheel, A57. Each end of the shaft, A58, projects through theV adjacent bearings, A55, and is surrounded by a sprocket wheel, A51, which is rigidon said shaft and supports an endless sprocket chain, A52, which surrounds the sprocket wheel, A55, which is rigid on the inner side of the adjacent carrying wheel, A5, and concentric with the axle, A8.

By means ofthe clutch lever, A45-A55, the

conical clutch members, A45, may be put into the middle position so that no engagement is made with either of the clutch members, A12 or A55, or the members, A15, may be shifted so as to engage one or the other of the members, A52 and A55. Engagement ywith one of said members will cause the rotation of the cogwheel, A52, in one direction, while engagement with the other of said members Vwill vcause rotation of the wheel, A52, in the opposite direction. Rotation of the wheel, A52, will cause the rotation of the train of transmission members leading to the sprocket chain, A52, whereby said chain is driven to rotate the carrying wheel, A5, in one direction or the other.V

Within the. worm wheel, A57, the shaft, A55, is divided and ordinary 'differential gearing is formed within the worm wheel and applied to the two sections. of the shaft, in order to permit independent rotationof the sprocket wheels, A51, while the machine is traversing a curved path.

Brakes are applied to the carrying wheels as follows:

0n the axle, A5, and within each sprocket wheel, A55, is a rigid bracket, U1, extending rearward. A strap-form expansion member, U2, is located within the sprocket wheel and has its middle portion opposite'the rear end of the bracket, U1. A pair of ears, U5, resting on tne expansion member extend to opposite sides of the bracket, U1, and a in, U5, secures said ears to said bracket. By this ,means, said expansion member is supported. A shorter bracket, U55, extends Vforward and downward from the axle, A8. In said bracket is formed a horizontal bearing, U5, in which rests arock-shaft, U7, extending from the bracket U5, of one of said sprocket wheels, A55, toV and through the bracket, U5, of the companion sprocket wheel, A55, at the other side of the machine. Between each bracket, U5, and the adjacent sprocket wheel, said rock-shaft rigidly supports a short arm, 110 U5, which extends upward and has coupled to its upper end the rear end of a short link, U2. VTo the forward end of said link are coupled the meeting ends of a pair of toggle links, U15, which have their opposite ends 115 coupled to the ends'of the expansion member, U2. j

Turning the rock-shaft clockwise, as viewed in F ig. 19, will drive the toggle members forward and force the expansion mem- 120 ber outward for engagement with the interior of the sprocket wheel, A55, in the usual manner.

Near the right hand sprocket wheel, A53, an arm, U11, is secured rigidly to the rock 125 shaft, U7. T o the lower end of said arm is coupled the forward end of a connecting rod,

U12. The rear end of said connecting rod is loosely surrounds a stud, U15, which is horizontal and transverse to the length of the machine and rigid on the right hand face of the main frame, A1. A pedal, U16, is rigid on the sleeve, U11, and extends forward to a position near the hand levers, O13 and O12. By depressing the pedal, the connecting rod, U12, is drawn rearward and the rock shaft is turned in the proper direction to force the toggle members of the brake forward. A spring, O17, is applied to normally lift the pedal.

Rearward of the hand levers, O12 and 023, and the pedal, U16, is a seat, U18, for the operator of the machine. Said seat is supn ported on a standard, U19, which rests on a platform, U2", which rests on brackets, U21, projecting rightward from the right hand portion of the main frame or base, A.

From the foregoing it will be understood how the machine is given bodily forward and backward and diagonal movement upon the earth or floor to approach and recede from the material to be loaded.

1n the particular form of the apparatus shown by the drawings, the mechanism oonce1-ned directly with the handling of the material to be loaded comprises three groups: (1) the conveyor mechanism, B, (2) the shovel mechanism, C, and the lmagazine or hopper mechanism, D. The conveyer mechanism comprises a stationary, inclined frame-work and an endless, traveling apron. 'lhe shovel mechanism is located in front of the conveyor mechanism and comprises a shovel which takes material from the ground or floor and carries it backward and discharges it upon the conveyor mechanism. The magazine or hopper is supported upon the rear of the conveyor mechanism structure in position to receive the material discharged from the rear end of the conveyer. rEhe magazine has gate mechanism through which the material accumulated in the magazine may he quickly discharged into a wagon or other vehicle temporarily placed below the magazine.

The conveyor mechanism, the Shovel mechanism, and the magasine mechaism will now be described in the order in which they have been named.

ln its general features, I.the conveying mechanism is similar to conveying mechanisms heretofore used for similar purposes, as. for example, in the loading machines du srribed by Letters ljatenit of the United States No. 940,998 and No. 940,999, granted to me November 23, 1909.

yThe conreyer body, B1, llas its OFWEIT end immovably secured to the frame or base, fr, by means of upright plates, B2, (see Figs. 22 and 23), the plates, B2, being bolted or Y riveted to the conveyer body and the plates, '(f, Tr-fhich are supported on the main frame a, 5, 22 and 23). At each rear corner of the frame or base, A, rises a column or standard, B3, to the upper end of which is rigidly secured the conveyer body, the latter projecting rearward of said stand ards. .fr gusset plate, 131', is applied to each outer face of the frame, A, and to the lower portion of the corresponding column or standard, B3, by rivets or bolts. il. gusset plate, B5, is similarly applied to the rear face of each standard and the adj acent outer end of the bridge-piece, AG. Diagonal braces, l, cross each other between the standards, B3, and have their lower ends secured to the gusset plates, E5, while their upper ends are secured to `the gusset plates, lSS, which are also secured to the rear faces ofV the adjacent standards, B3. Gusset plates, B7, extend across the upper ends of the standards, and the adjacent outer face of the conveyer body and are secured to said body and said standard. 1mmediately at the rear of the base of each sta-ndard, B3, a brace, B9, extends diagonally upward and rearward, the lower end of said brace being secured to the gusset plate, B4, while the upper end is secured to the gusset plate, B10, which is attached to the upper part of the adjacent face of the conveyer body, B1. By the means described, the conveyer body is immorably :supported upon the frame or base, il, ofthe machine.

At the lower end of the conveyor body is a transverse apron shaft, T311, resting in bearing blocks, B11. Each such bearing is adjustable in a channel, B13, in the plate, B2, by means of the bolt, B14, extending through a bridge-piece, i315, on the forward edge of said plate. Between its bearings, the apron shaft, B11, is surrounded by fixed sprocket wheels, B1G, one such wheel being near each bearing.

it the upper end of the conveyer body, an apron shaft, A11, extends horizontally and transversely across said body and rests in bearinors, B18, which are slidable in channels, i319, fr Led in the plates, B10. Said bearinffs adjustable by means ot bolts, B20, cxtci'ii'ling through bridge-pieces, B21. rThe apron shaft. B17, is surrounded by sprocket wheels, E22, fixed upon said sha ft. The end less apron, B23, lies lengthwise upon the body, B1, and extends over the sprocket .vlieels, B1G and B22, and beneath the body, 7?1. 'it the left hand side of the machine, the shaft, B17, supports sprocket wheel, il, which is keyed to said shaft. iin end less sprocket chain, surrounds said wheel and a sprocket wheel, B20, which is mounted on the left hand end of the shaft, B27, which is horizontal and transverse Vto the length of the chine and rests in bearings, B2S, which are supported on the upper face of the frame or base, A.

immediately at the right of the right hand bearing, B28, a. sprocket wheel, B29,

`surrounds the shaft, B21, immovably. A sprocket chain, E1, is appliedto the sprocket wheel, B22, and to a sprocket wheel, E2, immovably surrounding the right hand end of a shaft, E3, resting inbearings, E2, and E1, in the chair casting, A1.

Said shaft receives motion from the shaft, A33, through a clutch and a pair of spur gear wheels, as will next be described.

A sleeve, E0, surrounds the shaft, E3, within 'the bearing, E3, and projects through said bearing in each direction. At the left of said bearing, said sleeve is surrounded by a spur gear wheel, E1, which is keyed to said sleeve. Said .spur gear wheel meshes with a. spur gear wheel, E3, which surrounds and is keyed to the shaft, A35. Through `the gears, E3 and E1, rotation is impart-ed tothe sleeve, E0. At the right ofv the bearing, E3, the cup member, E3, of a conical friction clirtch :surrounds the sleeve, E0, and is fixed thereon. rlhe cone member, E10, of said clutch surrounds the shaft, E3, andis feathered thereon to permit longitudinal sliding and to compel rotation with the shaft, E3.

An expanding coiledV spring, E11, surrounds said shaft at the right of the clutch member, E10, and bears against said member and also against a'collar, E12, surrounding lthe shaft at the right of the sleeve. Said spring is of proper tension to normally make engagement between the two clutch members for the transmission of power from the sleeve, E0, to the shaft, E3. The collar, El?, is screw threaded on theshaft in order to permit adjustmenttoward and from the clutch.

The hub of the clutch member, E10, has a circumferential channel, E13, in which rests a clutch collar, E12, having radial studs, E13, which rest in bearings, E10, in an upright yoke, E11. The lower end of said yoke is forked and is coupled to the left hand end of a fulcrum bolt,'E13, the right hand end of which is immovably s-ecured to one of a pair of bars, E10, which are horizontal and parallel to the length of the machine and supported at opposite sides of and bolted 'to a block, E20., resting on and bolted to the bridge-member, A3, of the main frame and alt opposite sides of and bolted to a block, E21, resting on and bolted to the chair casting, A1.

TheV upper end ofthe yoke, E11, is also forked, and to said end is cou aled the left hand end of a connecting rod, 22, by which the upper Vportion of said yoke is pulled rightward when it is desired to suspend transmission from the wheel, E1, to the shaft, E3. 0n the right hand end of said connecting rod Yis an eye, E23, the axis of which is horizontal and parallel to the length of the machine. Within said eyeis an eccentric, E24, having journals, E25, supported in a pairiof bracket plates, E20, which are applied to the right hand side of the'conveyer body, B1, and project below said body. n one of the journals of said eccentric is a crank or hand lever, E21. Said eccentric is normally set to place the connecting rod far enough to the left to allow the spring, E11, to press the clutch member, E10, into engagement with the clutch member, E3. By turning the hand lever, E21, the eccentric is made to draw the connectin rod toward the right, whereby, through te yoke, E11, the clutch member, E10, is forced to the right and out of engagement in opposition to the spring, E11, whereupon transmission from the spur gear wheel, E1, to the shaft, E3, is suspended. During the operation of the machine, the conveyer belt is to be operated continuously. When the operation of the conveyer mechanism is to be suspended, the clutch is disengaged as already described. The shovel mechanism, described farther on, also receives motion from the shaft, B21, through the sprocket wheels, C1, immovably surrounding the ends of said shaft.

The magazine mechanism, D, will next be described.

Each upper gusset plate, B10, extends below thefconveyer body, B1, and a little way forward of each such plate is another plate, D1, secured to the adjacent face of said body and also extended below said body. At each side of the conveyer. the magazine has an upright side plate, D2, the upper edge of which bears against the adjacent lower face of the c-onveyer body and Voutward against the inner face of the downward extended portions of the adjacent gusset plates, B10 and D1; and said plate, D2, is secured to said plates, B10 and D1, by means of bolts or rivets. Said side plates, D2, are joined to each other by a forward transverse plate,

D3. At a short distance rearward of said plate, D3, is a bottom plate, D1, and from the rear edge of the bottom plate, D2, a rear end plate, D5, extends from' onev side plate, D2, to the other.

Between the plate, D3, and the plate, D1, is a discharge opening which is normally covered by a door, D0; From each end of the door, a hanger, D1, extends upward along the outer face of the adjacent side plate, D2. rl`he upper 'end vof said .hangerextends between a bracket, D3, and the plate, D2. A pintle, D0, Xtends through said bracket and hanger, whereby said door is hinged. 'The door is concaved to conform to the convexity bar is extended rearward to the rear part of the magazine and thence turned laterally to the middle upright longitudinal plane of the machine, and thence horizontally rearward, the two bars meeting and being secured to each other by riveting or otherwise. These portions of said bar constitute a handle, D11. F or moving the door rearward, said handle is pulled downward. When that is done, the handle and the handle bars and the door swing on the pintle, D.

The door is normally locked in the closed position by latch mechanism. immediately at the rear of the magazine, a horizontal bridgepiece, D12, connects the two bars, D10. Cn the handle, D11, is a bell-crank, D13, fulcrumed at D14 on said handle. One arm of said bell-crank extends rearward above the handle, D11, while the other arm of said bellcranlr rises and is coupled to the rear end of a connecting` rod, D15. The forward end of said connecting rod is coupled to the upper end of a hook, D1, which is pivoted at D11, to a standard, D18, which is supported on the bridge-piece, D12. The. hook, D16, is directed forward and normally engages a bracket, D1, fixed on the rear face of the end plate, D5, of the magazine. TWhen the door is to be opened, the operator draws the horizontal arm of the bell-crank downward whereby the hook, D16, is drawn rearward out of engagement with the bracket, D1. By continuing to pull downward on said bell-cranlr arm, engagement is made between said arm and the handle, D11, and said two members are drawn down together.

By usinothe magazine, the. operation of the conveyer may be carried on continuously, and a receiving vehicle need be placed be neath the magazine only as often as the latter becomes filled with material. This reduces the time during which such a vehicle must be in position below the rear end of the conveyor. Furthermore, the forward and rearward and lateral movements of the rear end of the machine malte it difficult to keep the receiving vehicle in position below the rear end of tho'eonveyei It now remains to desfsribe the shovel mechanism. Said merhanism is supported partially by the yoke, C"-C10-C11, which is fulcrumod to the forward end of the main frame.

Art the forward end of the frame, A, a plate, C2, bolted flatwise against each outer side face of said frame and made to project above and forward of said frame. The portion of said plate whirh projects forward of said frame has a horizontal slot, C3, in which rests a. slidable bearing, C4, which has an upper and a lower channel, C5, in which rests the portion of the plate above and below the slot, C3. Across the fomard end of said slot extends bridgepiece,` CG through which extends a bolt C7,

which is supported immovably on the front face of the bearing block, Ct, and extends horizontally and slidably forward through said bridge-piece. Forward of said bridgepiece a nut surrounds said bolt. By turning said nut forward, said bolt and said bearing bloclr are forced toward the front of the machine. A hinge shaft, C1", extends through said bearing blocks and through the rear portions of the parallel arms, C, of a yolre, C9-C1-C11, whereby said yoke is hinged adj ustably to the main frame. From said shaft, said yoke is extended downward below the main frame and is then shaped to eonstitute a. t1-shape member, C10, extending rearward and having its apex in the middle, upright, longitudinal plane of the main frame. From said apex au arm, C11, extends rearward beneath the bridge member, A3, of the frame and beneath the pair of bars, E12, which as already described, are secured to the block, E20, which is mounted on said bridge-piece and to the block, E21, which is mounted on the chair casting, A1. The shovel mechanism is supported by the arms, C9, of said yoke, and the weight of said mechanism is sufficient to constantly tend to tilt the yoke on the fulcrum formed by the shaft, C8, said arms eoing downward and the V-shape member, C10, going upward. Such upward movement of said member is limited by engagement of the arm, C11, with a stop mechanism which will now be described.

the arm, C11, is an upright aperture, C12. Above said aperture is a stop block, C13 which is of sufficient area to bear against the upper face of the member, C11.

VSaid block has an upright aperture,C1,

which registers with the aperture, C12. An upright screw shaft, C15, extends through the apertures, C14, and C12. A cross pin, C1, extends transversely through said block and said shaft and joins said members to each other. The apertures, C14 and C12, are larger than the cross section of the screw shaft7 whereby rocking of the screw shaft in said apertures is permitted. The upper portion of said shaft extends through a gear nut, C11, which rests in an upright bearing, C18, formed in a blorlr, C19, which is located between the two bars, E1, already described. Trunnions, C20, extend horizontally from said block into bearings, C21, formed in said bars. Thus said block is adapted to roch on an axis whirh is horizontal and transverse to the length of the machine, said axis being the axis of the trunnions, C2. The gear nut extends below the block, C19, and that portion of said nut is exteriorly screw threaded and surrounded by a nut, C22, which bears against the lower face of the block, C19, and prevents upward movement of the gear nut. Above said bloclr, the gear nut is expanded and shaped'to 

